An extrusion blow molding machine for plastic furniture production

Abstract

This utility model discloses an extrusion blow molding machine for plastic furniture production, belonging to the field of blow molding machines. It includes a support plate, with a machine body mounted on its upper top. A feeding assembly is located on the upper top of the support plate, comprising a feeding cylinder mounted on the top of the support plate. The end of the feeding cylinder is fixedly connected to the input end of the machine body. A feeding seat is mounted on the upper top of the feeding cylinder. A screen plate is slidably connected to the inner wall of the feeding seat. A grinding box is fixedly connected to the outer wall of the feeding seat corresponding to the screen plate. A grinding roller is rotatably connected to the inner wall of the grinding box. Through the cooperation of these devices, the blow molding efficiency of the blow molding machine is improved. The feeding seat, in conjunction with the screen plate, round shaft, cam, and drive motor, allows the cam to continuously abut against the screen plate, screening the plastic particles and conveying larger-diameter plastic particles to the grinding box. This ensures that the plastic particles are approximately the same size during the blow molding process, resulting in more complete plastic melting and improved blow molding effect.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically an extrusion blow molding machine for plastic furniture production. Background Technology

[0002] A blow molding machine is a plastic processing device that melts plastic raw materials (usually in granular form) by heating them, and then uses compressed air to blow the molten plastic into a hollow product of a specific shape. The molten plastic preform (called a "preform") is placed in a mold, and air is injected inside to make the preform adhere tightly to the inner wall of the mold. After cooling and solidification, a hollow product that conforms to the mold cavity is obtained.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN222004395U) discloses an extrusion blow molding machine for plastic furniture production. The machine includes a base plate with two support blocks fixedly installed on its top side. A conveyor cylinder is fixedly installed on each support block. One end of the conveyor cylinder has a discharge port, and the other end has an insertion hole connected to the conveyor cylinder. A connecting pipe is fixedly installed on the bottom side of the conveyor cylinder. When plastic needs to be removed from the conveyor cylinder, a limiting rod is removed from the fixed plate, and a pull rod is pulled to move the insertion plate out of the slot. Because the slot is connected to the conveyor cylinder, the plastic at one end of the conveyor cylinder falls into a collection box along the connecting pipe. A threaded motor then drives a threaded blade to rotate in the opposite direction, conveying the remaining plastic from the conveyor cylinder to the slot. The plastic then falls from the connecting pipe into the collection box, enabling plastic recycling and removal of the remaining plastic from the conveyor cylinder, thus replacing the slow process of manual cleaning.

[0004] Although the aforementioned patent improves the feeding efficiency in blow molding by setting up components such as conveyor cylinders, slots, and pull rods, and by cooperating with each component, and by pulling the pull rod to drive the movement of components such as the insert plate to collect excess material and avoid waste, in the blow molding process of the blow molding machine, plastics of different particle sizes have different melting times. Although this component can recycle excess plastic particles and reduce the labor intensity of operators, feeding different particles together during feeding will not be conducive to improving the blow molding quality of blow-molded products.

[0005] Therefore, this utility model provides an extrusion blow molding machine for plastic furniture production to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides an extrusion blow molding machine for the production of plastic furniture, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An extrusion blow molding machine for producing plastic furniture includes a support plate, an organic body is mounted on the upper top of the support plate, and a feeding assembly is provided on the upper top of the support plate.

[0011] The feeding assembly includes a feeding cylinder mounted on the top of a support plate. The end of the feeding cylinder is fixedly connected to the input end of the machine body. A feeding seat is mounted on the top of the feeding cylinder. A screen plate is slidably connected to the inner wall of the feeding seat. A grinding box is fixedly connected to the outer wall of the feeding seat at the location corresponding to the screen plate. A grinding roller is rotatably connected to the inner wall of the grinding box.

[0012] As a preferred technical solution of this application, the outer wall of the grinding roller is fixedly sleeved with transmission teeth, the outer walls of the two transmission teeth mesh and drive each other, and the end of one of the grinding rollers is coaxially driven with a grinding motor, the lower bottom end of the grinding motor is fixedly connected to the outer wall of the grinding box.

[0013] As a preferred technical solution of this application, a round shaft is rotatably connected to the outer wall of the feed seat, and a cam is fixedly sleeved on the outer wall of the round shaft inside the feed seat, and the outer wall of the cam abuts against the bottom end of the screen plate.

[0014] As a preferred technical solution of this application, the inner wall of the feeding cylinder is rotatably connected to a rotating roller, the outer wall of the rotating roller is fixedly sleeved with a conveying blade, and the rotating roller is sleeved with the outer wall of the circular shaft through a belt drive.

[0015] As a preferred technical solution of this application, the end of the rotating roller is coaxially driven by a drive motor, the drive motor is installed at the top of the support plate, and the bottom of the support plate is fixedly connected to a support base.

[0016] As a preferred technical solution of this application, a feed pump is installed on the outer wall of the grinding box, the input end of the feed pump is fixedly connected to the output end of the grinding box, and the output end of the feed pump is inserted into the outer wall of the feeding cylinder through a material pipe.

[0017] (III) Beneficial Effects

[0018] 1. By setting up the feeding assembly, the blow molding efficiency of the blow molding machine can be improved through the cooperation of various components. The feeding seat, together with the screen plate, round shaft, cam and drive motor, can make the plastic particles on the screen plate vibrate and screen by the cam continuously abutting against the screen plate. Then, the large-sized plastic particles are transported to the grinding box, so that the plastic particles in the blow molding process are roughly the same size, which makes the plastic melt fully and improves the blow molding effect. At the same time, it avoids the phenomenon of plastic residue in the machine body due to large particles during the melting process.

[0019] 2. Through the cooperation of the grinding box, two grinding rollers, transmission gears and grinding motor, the two grinding rollers can be rotated by the operation of the grinding motor, thereby grinding the large plastic particles separated by the sieve plate, reducing their particle size, and then collecting them uniformly. With the help of the conveying pump, the ground particles can be processed, either extracted for unified storage or directly pumped into the front end of the conveying cylinder for the test blowing process. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of an extrusion blow molding machine for producing plastic furniture;

[0021] Figure 2 This is a schematic diagram of the feed seat in an extrusion blow molding machine for producing plastic furniture.

[0022] Figure 3 This is a schematic diagram of the sieve plate in an extrusion blow molding machine used for plastic furniture production.

[0023] Figure 4 for Figure 2 Schematic diagram of the structure at point A;

[0024] Figure 5 for Figure 2 Schematic diagram of the structure at point B;

[0025] Figure 6 This is a schematic diagram of the material pump in an extrusion blow molding machine used for plastic furniture production.

[0026] In the picture:

[0027] 1. Support plate; 2. Machine body; 3. Feeding cylinder; 4. Feed seat; 5. Screen plate; 6. Grinding box; 7. Grinding roller; 8. Transmission gear; 9. Grinding motor; 10. Round shaft; 11. Cam; 12. Rotary roller; 13. Conveying blade; 14. Belt; 15. Drive motor; 16. Feed pump; 17. Material pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides an extrusion blow molding machine for plastic furniture production, such as... Figures 1-6As shown, the extrusion blow molding machine for producing plastic furniture includes a support plate 1, an organic body 2 is mounted on the upper top of the support plate 1, and a feeding assembly is provided on the upper top of the support plate 1.

[0030] The feeding assembly includes a feeding cylinder 3 mounted on the top of the support plate 1. The end of the feeding cylinder 3 is fixedly connected to the input end of the machine body 2. A feeding seat 4 is mounted on the top of the feeding cylinder 3. A screen plate 5 is slidably connected to the inner wall of the feeding seat 4. A grinding box 6 is fixedly connected to the outer wall of the feeding seat 4 corresponding to the screen plate 5. A grinding roller 7 is rotatably connected to the inner wall of the grinding box 6.

[0031] The outer wall of the grinding roller 7 is fixedly sleeved with a transmission tooth 8, and the outer walls of the two transmission teeth 8 mesh for transmission. One end of the grinding roller 7 is coaxially driven by a grinding motor 9, and the lower end of the grinding motor 9 is fixedly connected to the outer wall of the grinding box 6.

[0032] A round shaft 10 is rotatably connected to the outer wall of the feed seat 4. A cam 11 is fixedly sleeved on the outer wall of the round shaft 10 inside the feed seat 4, and the outer wall of the cam 11 abuts against the bottom end of the screen plate 5.

[0033] The inner wall of the feeding cylinder 3 is rotatably connected to a rotating roller 12, and the outer wall of the rotating roller 12 is fixedly sleeved with a conveying blade 13. The rotating roller 12 and the outer wall of the round shaft 10 are connected by a belt 14 for transmission.

[0034] The end of the rotating roller 12 is coaxially driven by a drive motor 15, which is mounted on the top of the support plate 1. The bottom of the support plate 1 is fixedly connected to a support base.

[0035] Specifically, the support plate 1 provides sufficient support for the blow molding machine, ensuring its stability during operation and preventing the risk of tipping over during extrusion blow molding, thus further improving production safety and stability. The feeding assembly, through the cooperation of various components, improves the melting stability of plastic granules, preventing some plastic from remaining unmelted due to varying granule sizes, which would reduce blow molding efficiency. The feeding cylinder 3, in conjunction with the feeding seat 4 and conveying blades 13, allows for the screening of larger plastic granules by the feeding seat 4. The continuous rotation of the conveying blades 13 then transports the screened plastic granules into the machine body 2 for blow molding. The drive motor 15 provides power to the rotating roller 12 and conveying blades 13, ensuring stable conveying. Simultaneously, when the drive motor 15 is running, the outer wall of the rotating roller 12 will be conveyed by the belt 14... The rotating shaft 10, connected to the outer wall of the feed seat 4 and the cam 11 at the end of the shaft 10, continuously abuts against the screen plate 5 as it rotates, causing the screen plate 5 to slide longitudinally inside the feed seat 4. This allows for rapid screening of the input plastic granules. Continuous vibration can dislodge larger plastic granules from the side wall of the feed seat 4, which then slide inside the grinding box 6. The grinding motor 9 and the two grinding rollers 7 work together to grind the larger plastic granules, reducing their diameter for subsequent uniform processing. Since the outer walls of the grinding rollers 7 mesh with each other through the transmission teeth 8, the two grinding rollers 7 can move synchronously during grinding, further improving grinding efficiency. This component has a simple structure, strong applicability, and can reduce the labor intensity of operators, improve blow molding efficiency, and improve blow molding quality.

[0036] A feed pump 16 is installed on the outer wall of the grinding box 6. The input end of the feed pump 16 is fixedly connected to the output end of the grinding box 6, and the output end of the feed pump 16 is inserted into the outer wall of the feeding cylinder 3 through the material pipe 17.

[0037] Specifically, the feed pump 16 installed on the outer wall of the grinding box 6 can process the ground plastic particles inside the grinding box 6. It can either extract the particles for unified collection or use the feed pipe 17 installed at the output end of the feed pump 16 to transport the ground fine plastic particles into the feed cylinder 3 for pre-blow molding, allowing the equipment to be preheated. This component has a simple structure and strong practicality. Through the cooperation of various parts, it can improve the applicability of the device while improving the efficiency of blow molding, reducing the residue of plastic particles in the blow molding process, and avoiding the phenomenon of defective products causing increased production costs during blow molding.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An extrusion blow molding machine for the production of plastic furniture comprising a support plate (1), characterized in that: An organic body (2) is installed on the upper top of the support plate (1), and a feeding assembly is provided on the upper top of the support plate (1); The feeding assembly includes a feeding cylinder (3) installed on the top of the support plate (1). The end of the feeding cylinder (3) is fixedly connected to the input end of the machine body (2). A feeding seat (4) is installed on the top of the feeding cylinder (3). A screen plate (5) is slidably connected to the inner wall of the feeding seat (4). A grinding box (6) is fixedly connected to the outer wall of the feeding seat (4) corresponding to the screen plate (5). A grinding roller (7) is rotatably connected to the inner wall of the grinding box (6).

2. The extrusion blow molding machine for plastic furniture production according to claim 1, characterized in that: The outer wall of the grinding roller (7) is fixedly sleeved with a transmission tooth (8), and the outer walls of the two transmission teeth (8) mesh for transmission. One end of the grinding roller (7) is coaxially driven by a grinding motor (9), and the lower end of the grinding motor (9) is fixedly connected to the outer wall of the grinding box (6).

3. The extrusion blow molding machine for plastic furniture production according to claim 2, characterized in that: The outer wall of the feed seat (4) is rotatably connected to a round shaft (10). The outer wall of the round shaft (10) inside the feed seat (4) is fixedly sleeved with a cam (11), and the outer wall of the cam (11) abuts against the bottom end of the screen plate (5).

4. The extrusion blow molding machine for plastic furniture production according to claim 3, characterized in that: The inner wall of the feeding cylinder (3) is rotatably connected to a rotating roller (12), and the outer wall of the rotating roller (12) is fixedly sleeved with a conveying blade (13). The rotating roller (12) and the outer wall of the round shaft (10) are connected by a belt (14) for transmission.

5. The extrusion blow molding machine for producing plastic furniture according to claim 4, characterized in that: The end of the rotating roller (12) is coaxially driven by a drive motor (15), which is mounted on the top of the support plate (1), and a support base is fixedly connected to the bottom of the support plate (1).

6. The extrusion blow molding machine for plastic furniture production according to claim 1, characterized in that: A feed pump (16) is installed on the outer wall of the grinding box (6). The input end of the feed pump (16) is fixedly connected to the output end of the grinding box (6). The output end of the feed pump (16) is inserted into the outer wall of the feeding cylinder (3) through a material pipe (17).

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